Lobelia spicataLam.

pale-spiked lobelia

WFO wfo-0000815661 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Lobelia spicata, photographed by jfox16
fig. a jfox16, CC BY 4.0 / 2022-05-29 / obs. 201638733

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Flowering n = 1,485 observations

Flowering observations of Lobelia spicata by month
MonthObservations
Jan0
Feb1
Mar0
Apr7
May150
Jun747
Jul472
Aug77
Sep20
Oct10
Nov0
Dec1

Peak flowering in Jun, from 1,485 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 24 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Dortmanna leptostachys (A.DC.) Kuntze
  • Dortmanna spicata Kuntze
  • Lobelia bracteata Small
  • Lobelia claytoniana Michx.
  • Lobelia goodenioides Willd.
  • Lobelia hirtella Greene
  • Lobelia leptostachys A.DC.
  • Lobelia leptostachys var. hirtella Farw.
  • Lobelia nivea Raf.
  • Lobelia pallida Muhl.
  • Lobelia pallida var. claytoniana (Michx.) Darby
  • Lobelia paniculata Raf.
  • Lobelia spicata f. albiflora Ralph Hoffm.
  • Lobelia spicata f. campanulata (McVaugh) Bowden
  • Lobelia spicata f. spicata
  • Lobelia spicata var. campanulata McVaugh
  • Lobelia spicata var. hirtella A.Gray
  • Lobelia spicata var. leptostachys Mack. & Bush
  • Lobelia spicata var. originalis McVaugh
  • Lobelia spicata var. parviflora A.Gray
  • Lobelia spicata var. scaposa McVaugh
  • Lobelia spicata var. spicata
  • Petromarula hirtella Nieuwl. & Lunell
  • Rapuntium claytonianum C.Presl

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.